Glen this too has been similar to my experience. Often people approach me wanting to tell stories of this uncle who owned a kilt, or when I was in Glasgow etc. then expect me to know the geneology and tartans of 1/5 of the western world. Of course I just make up what I'm not sure of, not letting fact or truth stand in the way of a good yarn.
And as you say Yaish we (usually) are comparatively more informed than the average Joe or Jane in the street. This then makes us as kilt wearers representatives of the celtic culture globally, along with musicians and artisans and academics involved in the culture/s. As diplomats it's invaluable to have a forum such as this one to learn and teach.
Erin